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. 2019 Mar 14;9:4553. doi: 10.1038/s41598-019-41074-8

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Forest plots of sensitivity and specificity for SAT-TB. The pooled sensitivity was 79% (95% CI 66–88%; n = 3); pooled specificity of all studies was 72% (95% CI 48–88%; n = 3). TP = true positive; FP = false positive; FN = false negative; TN = true negative. The point estimates of sensitivity and specificity from each study are shown as solid circles (blue square). Error (black horizontal line) bars indicate 95% CI. Numbers indicate the studies included in the meta-analysis, as cited in the reference list.